package main

import "fmt"

//一个变量的内部有 type 和 value
func main() {
	var str string
	//pair<static type:string, value:"aceld">
	str = "aceld"
	//pair<type:string, value:"aceld">
	var allType interface{}
	allType = str

	fmt.Println(str)
	fmt.Println(allType)
}
